7dpo and think I may be pregnant?

Brandi
My period was June 10-13 and I ovulated on the 22. On the 22, 23, and 24 we had sex and around the 25th I started to get terrible acid reflux, which I've never experienced before. As of Monday I've had light headedness, headaches, some dizziness, backaches and my face is so hot, but my fingers are like ice! Today I kept getting tastes of metal, like a penny tastes, on my tongue but just randomly. My breasts are a bit heavier and don't really ache that much, but my nipples are too sensitive to even be touched. I know it's super early bc AF isn't due till July 11, but does this sound like early prey symptoms to any of you?